I first tried out the "HTTP device", but I couldn`t figure out if it is possible to authorize with a Token instead of basic autorization, so I tried out the "code device" app.

So far I have not managed to get it working because of lakk of programming skills.

I have tested the API with the demo-token in the program "Postman", and get out the numbers I want as a JSON-object. Postman can convert code to a lot of languages, and I have been trying different versions of javascript in the app.

I can see that the "Code device" app specifies the returning value to be a number. Since the Tibber server-response is an JSON object I maybe have to extract the number of interest from the code in a sort of way???

Found a workaround to make a device showing live price with the JSON vdev Creator.
The only problem now is that the z-way interface is showing only one decimal precison for the value.
I would like to have 2 decimals for this virtual device. Is it possible to change this somehow?